1. 点击左下角设置按钮，选择Settings

2.在用户设置下找到vetur，点击 Edit in settings.json

3.设置如下配置

{
    "[vue]": {
        "editor.defaultFormatter": "octref.vetur"
    },
    
    "vetur.format.defaultFormatter.html": "js-beautify-html", // html不换行,格式化模板选择为：js-beautify-html
    "vetur.format.defaultFormatterOptions": {

        "js-beautify-html": {
            "wrap_attributes": "auto",// html 标签属性 换行设置[auto|force|force-aligned|force-expand-multiline] ["auto"]
            "end_with_newline": false // 在文件结尾添加新行
        },
        "prettyhtml": {
            "printWidth": 100,
            "singleQuote": false,
            "wrapAttributes": false,
            "sortAttributes": false
        }
    },
    "vetur.grammar.customBlocks": {
    
        "docs": "md",
        "i18n": "json"
    }
}